Graphene is a replacement for silicon in IC's - not so much the connectors or circuit traces. Industrial use of metals is not slowing down any time soon.
For me, it's no reflection on you as a seller - spot is just too high to be buying right now. I'd snatch up all 5 at $1800 or less, but that would require the spot price to take a bit of a dive first.
It might be obvious to the more experienced members here.... But for us newbies, can you clarify whether you're talking silver or gold krugerrands?
If silver - buzz (subject to being able to buy 20+).